Evaluation of palm oil sludge treatment by thermophilic anaerobic digestion

Citation

Chin, K. K. and Wong, K. K. (1981) Evaluation of palm oil sludge treatment by thermophilic anaerobic digestion. In: 2nd International Symposium on Anaerobic Digestion, 6-11 Sept. 1981, Germany. (pp. 1-9).

Abstract

A laboratory study was undertaken to determine the feasibility of using a thermophilic anaerobic digestIon process to treat palm oil mill wastes. Raw wastewater contained 67,000 mg/l COD, 31,800 mg/l suspended solids with a pH of 4.5. Completely mixed reactors were operated to evaluate the effects of feed strength and solids retention times on the system's performance. A range of 5 to 35 day solids retention times was studied. Results indicated that increasing solids retention time improve'd digestion performance in term of COD and volatile solids removal. COD reduction was 72% for the 5 day detention time unit. More than 90% COD removal was achieved at detention times greater than 15 days. pH of all units was aelf adjusted to 7.4. Gas production was, in general, greater 3 than 0.3 m /kg volatile solids feed.

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Additional Metadata

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Universiti Pertanian Malaysia
Keywords:	Sludge treatment; Thermophilic anaerobic digestion; Palm oil
Depositing User:	Azhar Abdul Rahman
Date Deposited:	16 May 2016 05:05
Last Modified:	16 May 2016 05:05
URI:	http://psasir.upm.edu.my/id/eprint/47020
Statistic Details:	View Download Statistic

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